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[Spasmolytic properties of pyrrolizidine alkaloids]
Abstract:
Acute toxicity, spasmolytic and hypotensive properties of the alkaloids senecionine, d-otocenine and floridanin isolated from Senecio Erraticum L. were studied. D-otocenine and floridanin elicited low toxicity, while senecionine and d-otosenine showed spasmolytic and floridanin predominantly hypotensive properties.